There are three forces, the only three forces capable of conquering and enslaving forever the conscience of these weak rebels in the interests of their own happiness. They are: the miracle, the mystery and authority.
In the Catholic Church, there are many other things which most justly keep me in her bosom. The consent of peoples and nations keeps me in the Church; so does her authority, inaugurated by miracles, nourished by hope, enlarged by love, established by age. The succession of priests keeps me, beginning from the very seat of the Apostle Peter, to whom the Lord, after His resurrection, gave it in charge to feed His sheep (Jn 21:15-19), down to the present episcopate.
A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being?
Rarely do we realize that we are in the midst of the extraordinary. Miracles occur all around us, signs from God show us the way, angels plead to be heard, but we pay little attention to them because we have been taught that we must follow certain formulas and rules if we want to find God. We do not realize that God is wherever we allow Him/Her to enter.